Alba Maxima (R. x alba maxima, 'Cheshire Rose', 'Great White Rose', 'Jacobite Rose') Alba shrub... one of the great historic roses of the West... clear white blooms... 'Maxima' is assumed to have had an ancient five-petalled ancestor, and to have evolved down the centuries through spontaneous fuller-petalled forms being selected by gardeners. It enters history in its heraldic five-petalled form, as the badge of the fourteenth-century Earls of March... linked to the Royal House of York about the year 1410... The name 'Jacobite Rose' links it to the exiled King James II who... as Duke of York had the white rose as his badge... [symbolised] rebellion in Scotland against English rule. Introduced fifteenth century or earlier...